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Buzz on high volume


Baxlin
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I have a budget-end EB-2 shape semi acoustic bass as a backup to my EB-3, and using it yesterday the sound man pointed out a mains hum type buzz when the volume on either humbucker was turned up.  As it’s on both, I assume it’s not either volume pot, but anyone any ideas please?  I tried different inputs, and different leads.  I’ve had the jack socket come loose in the past.

Thanks in advance for any help.

Malcolm

Edited by Baxlin
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A few thoughts spring to mind:

1. Duff/no shielding - how easy are the controls to access? If you can get inside easily this can be fixed relatively easy.

2. Loose earth wire - typically in contact with the bridge, but can work loose.

3. Do you have separate tone controls for each pickup, or one master? I've had a capacitor fail on a P bass before, which led to a rather prominent buzz. Could be this problem if you've only got the one tone control...or both could have failed, but that's less likely!

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Thanks, separate tone for each p/u.

Accessing controls is only via jerjiggling through the f sound holes.  Assuming this is possible (they must have been fitted this way?) how would I add shielding, please?

Thanks again

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